<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>
<p>window.frames[0]</p>
<p>window.frames['topFrame']</p>
<p>frames[0]</p>
<p>frames['topFrame']</p>
<p>top.frames[0]</p>
<p>top.frames['topFrame']</p>
</body>
</html>